ACCEL INTERNATIONAL HOLDINGS, INC.

NPDES ID: CTSIU0043

E — SNC: Effluent violation (monthly average limit)

The facility discharged more of a pollutant than its permit allows, based on a monthly average.

This quarter: 5 effluent violations.

Violations

June 30, 2026

Copper, total [as Cu]

103% over limit

Discharged 2.0267 mg/L against a permitted limit of 1 mg/L (MO AVG)

DMR, Limited - Numeric Violation

Copper, total [as Cu]

47% over limit

Discharged 2.93 mg/L against a permitted limit of 2 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

Silver, total [as Ag]

20% over limit

Discharged 0.1203 mg/L against a permitted limit of 0.1 mg/L (MO AVG)

DMR, Limited - Numeric Violation

April 30, 2026

Copper, total [as Cu]

131% over limit

Discharged 4.61 mg/L against a permitted limit of 2 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

Copper, total [as Cu]

101% over limit

Discharged 2.0115 mg/L against a permitted limit of 1 mg/L (MO AVG)

DMR, Limited - Numeric Violation

March 31, 2026

Copper, total [as Cu]

16% over limit

Discharged 1.1615 mg/L against a permitted limit of 1 mg/L (MO AVG)

DMR, Limited - Numeric Violation

First flagged

April 14, 2026 (5 months ago)

Last confirmed

September 15, 2026 (6 days ago)